ipchains firewall question

[coper]

Hi,

I am trying to learn how to open port for incoming and outgoing traffic using TCP/IP Connection to port 705/tcp.
So I need to add a line to /etc/sysconfig/ipchains. Also do I need two lines since I want to allow incoming and outgoing traffic or does one line do both?

Would this be correct?
-A input -p tcp -d 0/0 705 -j ACCEPT

Thanks

 

[cleaner416]

I'm not an ipchains expert, but before you do anything, look at your current chains via --list. The defaults on RH linux usually let out all outgoing traffic if the box is not a router, so you only need the inbound port. Also, note that the order of the ipchains matters, so when you insert your rule, stick in the top somewhere. Here is the one I used to open POP3:

ipchains -I input 4 -s 0.0.0.0/0.0.0.0 -d 0.0.0.0/0.0.0.0 110:110 -p 6 -j ACCEPT -y

The 4 refers to the rule #. Also I suggest using ipchains-save and ipchains-restore.

Hope this helps

 

[evilgreg]

I used a utility for setting up your firewall called pmfirewall from

http://www.pmfirewall.com

Give it a try